- One YN560 IV can respectively receive the wireless signal from YN560 IV, YN560-TX, RF-603 (I/II), RF-602, with optional 16 channels; when the YN560 IV and YN560-TX used as transmitter, it can realize remote control the parameter settings.

? Multiple Trigger Synchronous Mode Supported

- The YN560 IV can trigger through the set top of the camera, 2.4G wireless triggering, S1 and S2 pre flash cancel mode.

? Settings Save Automatically, Supports Custom Settings (Fn)

- The parameters on the flash will automatically save when the flash turned off; the users can customize setting the flash function as needed.

- Supports Remote Control the Parameters of Each Flash Group, When YN685 used as slave unit, it supports remote control of the flash mode, flash output and focal length of each flash group through YN622N series transceiver or YN660/YN560IV/YN560-TX.

? Extended Display:

- Used as YN622N II control panel and LCD panel, The YN685 can be set to 622 Ext. LCD trigger mode and then installed on the YN622N II acting as the control panel and LCD panel, makes the operation of the trigger more convenient.

? HSS:

- Supports High-speed Synchronization, When the HSS function is enabled, this speedlite can be used at all shutter speed, the maximum sync speed can reach 1/8000s.Note: The function need the support by the camera and transceiver.

- Supports Firmware Upgrade, Users can log in YONGNUO official website to download the latest firmware , to upgrade the speedlite via YN622N II, improve the performance of the product timely.

? Theme:

- Two display themes are designed for YN685, YN685 supports numeric theme and classic theme, you can choose the one that is suitable for you.

? Charging Recycle:

- Ultra-fast Charging Recycle System, Supports External Power Supply, It just take about 2 seconds at full output. Even if not use the brand new batteries, it just takes 3~5 seconds ultra-fast time to recycle; Besides, you can also use the external power supply to meet your higher requirement.

? Zooming:

- Supports Auto and Manual Zooming, Supports auto and manual zooming, the flash coverage can be changed between 20~200mm.

? Sound Prompt:

- Specific Sound Prompt System, When the sound prompt system is enabled, the speedlite can prompt its working condition, allows you to focus on creative process. Note: the sound prompt can be turned on/off.